ClassID:

162100

F28F1/422 - CPC Classification

Classification description:

Tubular elements; Assemblies of tubular elements; Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element

Recent Application in this class:
#1
20250271219
2025-08-28

HEAT EXCHANGER WITH INTERNAL LATTICE NETWORK

#2
20250230890
2025-07-17

ADDITIVE MANUFACTURED RETURN BEND FOR FIRE TUBE OR FURNACE TUBE

#3
20240085124
2024-03-14

HEAT TRANSFER SYSTEM INCLUDING TUBING WITH NUCLEATION BOILING SITES

#4
20230400264
2023-12-14

Metal heat exchanger tube

#5
20230356628
2023-11-09

THERMAL CONTROL DEVICE WITH A TUBING AND METHOD OF CONNECTING OF A TUBING TO A THERMAL CONTROL DEVICE

#6
20230341193
2023-10-26

Metal heat exchanger tube

#7
20220364800
2022-11-17

Asymmetric flow path topology

#8
20220333874
2022-10-20

HEAT TRANSFER SYSTEM INCLUDING TUBING WITH NUCLEATION BOILING SITES

#9
20220082297
2022-03-17

Flow heater with corrugations

#10
20210310752
2021-10-07

COMPACT GAS-GAS HEAT EXCHANGE TUBE AND MANUFACTURING AND USE METHODS THEREFOR

#11
20210172686
2021-06-10

Heat exchange tube, heat exchanger, and manufacturing method for heat exchange tube

#12
20210140721
2021-05-13

HEAT TRANSFER SYSTEM INCLUDING TUBING WITH NUCLEATION BOILING SITES

#13
20210080195
2021-03-18

Asymmetric flow path topology

#14
20210071962
2021-03-11

Heat exchanger with stacked flow channel modules

#15
20210061196
2021-03-04

PIPE AND WIRE HARNESS

#16
20210033351
2021-02-04

SHELL AND TUBE HEAT EXCHANGER, FINNED TUBES FOR SUCH HEAT EXCHANGER AND CORRESPONDING METHOD

#17
20210008493
2021-01-14

Heat exchange device and freeze dryer

#18
20200200489
2020-06-25

TUBE FOR A HEAT EXCHANGER AND METHOD OF MAKING THE TUBE

#19
20200182559
2020-06-11

Heat exchanger riblet and turbulator features for improved manufacturability and performance

#20
20190301815
2019-10-03

HEAT TRANSFER SYSTEM INCLUDING TUBING WITH NUCLEATION BOILING SITES

#21
20190293367
2019-09-26

Asymmetric application of cooling features for a cast plate heat exchanger

#22
20190145718
2019-05-16

Heat exchanger tube

#23
20190145717
2019-05-16

Heat exchanger tube

#24
20190120567
2019-04-25

Heat exchanger tube

#25
20190120562
2019-04-25

Heat exchanger

#26
20190033010
2019-01-31

Condenser tubes with additional flank structure

#27
20180372427
2018-12-27

SHELL AND TUBE HEAT EXCHANGER, FINNED TUBES FOR SUCH HEAT EXCHANGER AND CORRESPONDING METHOD

#28
20180372416
2018-12-27

Manufacturing a heat exchanger using a material buildup process

#29
20180306515
2018-10-25

Air conditioner

#30
20180134416
2018-05-17

Passive thermal system comprising combined heat pipe and phase change material and satellites incorporating same

#31
20180003444
2018-01-04

Heat exchanger

#32
20170307300
2017-10-26

RE-DIRECTION OF VAPOR FLOW ACROSS TUBULAR CONDENSERS

#33
20170131040
2017-05-11

HEAT TRANSFER SYSTEM INCLUDING TUBING WITH NUCLEATION BOILING SITES

#34
20160347464
2016-12-01

Load bearing element and a method for manufacturing a load bearing element

#35
20160305717
2016-10-20

Metal heat exchanger tube

#36
20160208746
2016-07-21

HEAT EXCHANGER

#37
20160131040
2016-05-12

Heat exchanger having a coaxial or concentric tube construction

#38
20160076828
2016-03-17

Turbulators in enhanced tubes

#39
20150362174
2015-12-17

Transfer pipe for furnace

#40
20150316294
2015-11-05

Coaxial borehole heat exchanger and method of producing the same

#41
20150247681
2015-09-03

Evaporation heat transfer tube

#42
20150241140
2015-08-27

Evaporation heat transfer tube with a hollow cavity

#43
20150007964
2015-01-08

Re-direction of vapor flow across tubular condensers

#44
20140374408
2014-12-25

Heat exchanger device and heater

#45
20140360706
2014-12-11

Laboratory condensers with passive heat exchange

#46
20140284036
2014-09-25

Condenser tubes with additional flank structure

#47
20140102134
2014-04-17

Tubular condensers having tubes with external enhancements

#48
20140020875
2014-01-23

Process for transferring heat or modifying a tube in a heat exchanger

#49
20130292086
2013-11-07

Heat transfer system including tubing with nucleation boiling sites

#50
20130233013
2013-09-12

Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes

#51
20130206379
2013-08-15

Air conditioner

#52
20130199766
2013-08-08

Air conditioner with grooved inner heat exchanger tubes and grooved outer heat exchanger tubes

#53
20130199765
2013-08-08

Air conditioner

#54
20120222447
2012-09-06

Tubular condensers having tubes with external enhancements

#55
20120199326
2012-08-09

INTERNAL HEAT EXCHANGER

#56
20120175085
2012-07-12

Enhanced Surface Area Heat Pipe

#57
20120145368
2012-06-14

Process for transferring heat or modifying a tube in a heat exchanger

#58
20120111551
2012-05-10

Finned tube for evaporation and condensation

#59
20110226458
2011-09-22

MODULAR HEAT SINK AND METHOD FOR FABRICATING SAME

#60
20110226457
2011-09-22

Condensation enhancement heat transfer pipe

#61
20110113820
2011-05-19

HEAT TRANSFER TUBE FOR HEAT EXCHANGER, HEAT EXCHANGER, REFRIGERATING CYCLE APPARATUS, AND AIR CONDITIONER

#62
20110108238
2011-05-12

High-efficiency enhanced boiler

#63
20110083619
2011-04-14

DUAL ENHANCED TUBE FOR VAPOR GENERATOR

#64
20110000657
2011-01-06

EXTRUDED TUBE FOR A HEAT EXCHANGER

#65
20110000254
2011-01-06

Heat exchanger and air conditioner using the same

#66
20100326644
2010-12-30

Plane-type heat-dissipating structure with high heat-dissipating effect and method for manufacturing the same

#67
20100288480
2010-11-18

Metallic heat exchanger tube

#68
20100276123
2010-11-04

Tubular condensers having tubes with external enhancements

#69
20100276122
2010-11-04

Re-direction of vapor flow across tubular condensers

#70
20100218533
2010-09-02

Air conditioner with internally grooved heat exchanger tubes optimized for an indoor heat exchanger and an outdoor heat exchanger

#71
20100088893
2010-04-15

Method of forming protrusions on the inner surface of a tube

#72
20090277188
2009-11-12

Heat Exchanger for a Mobile Refrigerated Vehicle

#73
20090260792
2009-10-22

Tube with fins having wings

#74
20090229806
2009-09-17

Enhanced heat transfer tube and manufacture method thereof

#75
20090166019
2009-07-02

Double-wall-tube heat exchanger

#76
20090166018
2009-07-02

Heat transfer system including tubing with nucleation boiling sites

#77
20090145581
2009-06-11

Non-linear fin heat sink

#78
20090087604
2009-04-02

EXTRUDED TUBE FOR USE IN HEAT EXCHANGER

#79
20090071624
2009-03-19

HEAT SINK

#80
20090056131
2009-03-05

Method and apparatus for forming a finned heat exchanger tube that includes an internal fin structure that is a spring formed from a spiral wire wound around a mandrel

#81
20090008075
2009-01-08

Polyhedral array heat transfer tube

#82
20090008069
2009-01-08

FINNED TUBE WITH STEPPED PEAKS

#83
20080289804
2008-11-27

Heat exchanger, method for the production of a heat exchanger

#84
20080236803
2008-10-02

FINNED TUBE WITH INDENTATIONS

#85
20080201948
2008-08-28

Method For Producing A Heat Exchanger

#86
20080093065
2008-04-24

HEAT EXCHANGER TUBE FOR HEATING SYSTEM

#87
20080093063
2008-04-24

Heat Exchanger for an Air Heating Device and Method for Producing a Heat Exchanger

#88
20080066488
2008-03-20

Heat Exchanger, Intermediate Heat Exchanger, and Refrigeration Cycle

#89
20080017359
2008-01-24

Heat Exchanger for an Air Heating Device

#90
20070234871
2007-10-11

Method for making enhanced heat transfer surfaces

#91
20070193728
2007-08-23

Structured heat exchanger tube and method for the production thereof

#92
20070193324
2007-08-23

Roll forming apparatus and method of roll forming

#93
20070181290
2007-08-09

Heat Transfer Apparatus

#94
20070180840
2007-08-09

Vertical self-contained air conditioner

#95
20070137848
2007-06-21

Polyhedral array heat transfer tube

#96
20070124909
2007-06-07

Method of forming protrusions on the inner surface of a tube

#97
20070028649
2007-02-08

Cryogenic air separation main condenser system with enhanced boiling and condensing surfaces

#98
20060213346
2006-09-28

Tool for making enhanced heat transfer surfaces

#99
20060080997
2006-04-20

Accumulator with an internal heat exchanger for an air-conditioning system

#100
20060075773
2006-04-13

Heat transfer tubes, including methods of fabrication and use thereof

#101
20060075772
2006-04-13

Heat transfer tubes, including methods of fabrication and use thereof

#102
20050241150
2005-11-03

Method of manufacture of heat-exchanger tube structured on both sides

#103
20050145377
2005-07-07

Heat transfer tube including enhanced heat transfer surfaces

#104
20050126215
2005-06-16

Heat transfer tubes, including methods of fabrication and use thereof

#105
20050061489
2005-03-24

Integrated multi-function return tube for combo heat exchangers

#106
20050061488
2005-03-24

Automotive heat exchanger

#107
20050006074
2005-01-13

Heat exchanger for motor vehicles

#108
17102149
2022-10-18

Remote active cooling heat exchanger and antenna system with the same